Its called the "waist"
Saddle can be a noun or a verb.
the back of the saddle is the cantle
The curved part of a saddle is called the "seat."
frame The hard part of a saddle is called a saddle tree.
A saddle bow is the front part of a saddle, arched up like a bow.
The main difference is that a Western saddle has a horn, while an English saddle does not.
The Cinch. its part of the saddle, and theres also the saying "it'll be a cinch" meaning it will be easy.
Its called the "waist"
Well actually a stirrup is on the saddle and it is the metal part that is shaped like an arch. It hangs from the stirrup leathers, and is the part of the saddle where the rider puts the ball of their foot into to help stabalize and keep them in the saddle.
The stirrups. The stirrups are at the bottom of the saddle... They are right next to the horses stomach....
pommel
If your horse has the saddle on and you go to your horses left look at the saddle. if u go from the seat and towards the back where the tail is (the right) the part closes to the tail. (Go on google.com and type in saddle diagrams and youll find what your looking for.)